src/programs/view/xutil.cpp

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  37 #include "gmxpre.h"
  38
  39 #include "xutil.h"
  40
  41 #include <cstdio>
  42 #include <cstring>
  43
  44 #include "gromacs/utility/cstringutil.h"
  45 #include "gromacs/utility/smalloc.h"
  46
  47 #include "Xstuff.h"
  48
  49 int CheckWin(Window win, const char* file, int line)
  50 {
  51     typedef struct
  52     {
  53         Window      n;
  54         const char* s;
  55     } t_winerr;
  56     t_winerr winerr[] = { { BadAlloc, "Bad Alloc" },   { BadColor, "Bad Color" },
  57                           { BadCursor, "Bad Cursor" }, { BadMatch, "Bad Match" },
  58                           { BadPixmap, "Bad Pixmap" }, { BadValue, "Bad Value" },
  59                           { BadWindow, "Bad Window" } };
  60 #define NERR (sizeof(winerr) / sizeof(winerr[0]))
  61     unsigned int i;
  62
  63     for (i = 0; (i < NERR); i++)
  64     {
  65         if (win == winerr[i].n)
  66         {
  67             std::fprintf(stderr, "%s", winerr[i].s);
  68             break;
  69         }
  70     }
  71     if (i == NERR)
  72     {
  73         return 1;
  74     }
  75
  76     std::fprintf(stderr, " in file %s, line %d\n", file, line);
  77     return 0;
  78 }
  79
  80 void LightBorder(Display* disp, Window win, unsigned long color)
  81 {
  82     XSetWindowAttributes attributes;
  83
  84     attributes.border_pixel = color;
  85     XChangeWindowAttributes(disp, win, CWBorderPixel, &attributes);
  86 }
  87
  88 void SpecialTextInRect(t_x11*       x11,
  89                        XFontStruct* font,
  90                        Drawable     win,
  91                        const char*  s,
  92                        int          x,
  93                        int          y,
  94                        int          width,
  95                        int          height,
  96                        eXPos        eX,
  97                        eYPos        eY)
  98 {
  99     int          fw, fh, x0, y0;
 100     XFontStruct* f;
 101
 102     if (font)
 103     {
 104         XSetFont(x11->disp, x11->gc, font->fid);
 105         f = font;
 106     }
 107     else
 108     {
 109         f = x11->font;
 110     }
 111
 112     fw = XTextWidth(f, s, std::strlen(s));
 113     fh = XTextHeight(f);
 114     switch (eX)
 115     {
 116         case eXLeft: x0 = x; break;
 117         case eXRight: x0 = x + width - fw; break;
 118         case eXCenter:
 119         default: x0 = x + (width - fw) / 2; break;
 120     }
 121     switch (eY)
 122     {
 123         case eYTop: y0 = y + f->ascent; break;
 124         case eYBottom: y0 = y + height - f->descent; break;
 125         case eYCenter:
 126         default: y0 = y + (height - fh) / 2 + f->ascent; break;
 127     }
 128     XDrawString(x11->disp, win, x11->gc, x0, y0, s, std::strlen(s));
 129     if (font)
 130     {
 131         XSetFont(x11->disp, x11->gc, x11->font->fid);
 132     }
 133 }
 134
 135 void TextInRect(t_x11* x11, Drawable win, const char* s, int x, int y, int width, int height, eXPos eX, eYPos eY)
 136 {
 137     SpecialTextInRect(x11, nullptr, win, s, x, y, width, height, eX, eY);
 138 }
 139
 140 void TextInWin(t_x11* x11, t_windata* win, const char* s, eXPos eX, eYPos eY)
 141 {
 142     TextInRect(x11, win->self, s, 0, 0, win->width, win->height, eX, eY);
 143 }
 144
 145 void InitWin(t_windata* win, int x0, int y0, int w, int h, int bw, const char* text)
 146 {
 147     win->self   = 0;
 148     win->color  = 0;
 149     win->x      = x0;
 150     win->y      = y0;
 151     win->width  = w;
 152     win->height = h;
 153     win->bwidth = bw;
 154     win->bFocus = false;
 155     win->cursor = 0;
 156     if (text)
 157     {
 158         win->text = gmx_strdup(text);
 159     }
 160     else
 161     {
 162         win->text = nullptr;
 163     }
 164 #ifdef DEBUG
 165     std::printf("%s: %d x %d at %d, %d\n", text, w, h, x0, y0);
 166 #endif
 167 }
 168
 169 void FreeWin(Display* disp, t_windata* win)
 170 {
 171     if (win->text)
 172     {
 173         sfree(win->text);
 174     }
 175     if (win->cursor)
 176     {
 177         XFreeCursor(disp, win->cursor);
 178     }
 179 }
 180
 181 void ExposeWin(Display* disp, Window win)
 182 {
 183     XEvent event;
 184
 185     event.type               = Expose;
 186     event.xexpose.send_event = True;
 187     event.xexpose.window     = win;
 188     event.xexpose.x          = 0;
 189     event.xexpose.y          = 0;
 190     event.xexpose.width      = 1000;
 191     event.xexpose.height     = 1000;
 192     event.xexpose.count      = 0;
 193     XSendEvent(disp, win, False, ExposureMask, &event);
 194 }
 195
 196 void XDrawRoundRect(Display* disp, Window win, GC gc, int x, int y, int w, int h)
 197 {
 198 #define RAD (OFFS_X / 2)
 199 #define SetPoint(pn, x0, y0) \
 200     pn.x = x0;               \
 201     pn.y = y0
 202
 203     if ((w < 10) || (h < 10))
 204     {
 205         XDrawRectangle(disp, win, gc, x, y, w, h);
 206     }
 207     else
 208     {
 209         XPoint p[9];
 210
 211         SetPoint(p[0], x + RAD, y);
 212         SetPoint(p[1], w - 2 * RAD, 0);
 213         SetPoint(p[2], RAD, RAD);
 214         SetPoint(p[3], 0, h - 2 * RAD);
 215         SetPoint(p[4], -RAD, RAD);
 216         SetPoint(p[5], 2 * RAD - w, 0);
 217         SetPoint(p[6], -RAD, -RAD);
 218         SetPoint(p[7], 0, 2 * RAD - h);
 219         SetPoint(p[8], RAD, -RAD);
 220         XDrawLines(disp, win, gc, p, 9, CoordModePrevious);
 221     }
 222 }
 223
 224 void RoundRectWin(Display* disp, GC gc, t_windata* win, int offsx, int offsy, unsigned long color)
 225 {
 226     XSetLineAttributes(disp, gc, 1, LineOnOffDash, CapButt, JoinRound);
 227     XSetForeground(disp, gc, color);
 228     XDrawRoundRect(disp, win->self, gc, offsx, offsy, win->width - 2 * offsx - 1,
 229                    win->height - 2 * offsy - 1);
 230     XSetLineAttributes(disp, gc, 1, LineSolid, CapButt, JoinRound);
 231 }
 232
 233 void RectWin(Display* disp, GC gc, t_windata* win, unsigned long color)
 234 {
 235     int bw = 1; /*2*w.bwidth;*/
 236
 237     XSetForeground(disp, gc, color);
 238     XDrawRoundRect(disp, win->self, gc, 0, 0, win->width - bw, win->height - bw);
 239 }
 240
 241 typedef struct t_mpos
 242 {
 243     int            x, y;
 244     struct t_mpos* prev;
 245 } t_mpos;
 246
 247 static t_mpos* mpos = nullptr;
 248
 249 void PushMouse(Display* disp, Window dest, int x, int y)
 250 {
 251     Window       root, child;
 252     int          root_x, root_y;
 253     int          win_x, win_y;
 254     unsigned int keybut;
 255     t_mpos*      newpos;
 256
 257     snew(newpos, 1);
 258     XQueryPointer(disp, DefaultRootWindow(disp), &root, &child, &root_x, &root_y, &win_x, &win_y, &keybut);
 259     newpos->x    = root_x;
 260     newpos->y    = root_y;
 261     newpos->prev = mpos;
 262     mpos         = newpos;
 263     XWarpPointer(disp, None, dest, 0, 0, 0, 0, x, y);
 264 #ifdef DEBUG
 265     std::fprintf(stderr, "Pushmouse %d, %d\n", x, y);
 266 #endif
 267 }
 268
 269 void PopMouse(Display* disp)
 270 {
 271     t_mpos* old;
 272
 273     old = mpos;
 274     if (!old)
 275     {
 276         return;
 277     }
 278
 279     XWarpPointer(disp, None, DefaultRootWindow(disp), 0, 0, 0, 0, old->x, old->y);
 280 #ifdef DEBUG
 281     std::fprintf(stderr, "Popmouse %d, %d\n", old->x, old->y);
 282 #endif
 283     mpos = old->prev;
 284     sfree(old);
 285 }
 286
 287 bool HelpPressed(XEvent* event)
 288 {
 289 #define BUFSIZE 24
 290     char           buf[BUFSIZE + 1];
 291     XComposeStatus compose;
 292     KeySym         keysym;
 293
 294     (void)XLookupString(&(event->xkey), buf, BUFSIZE, &keysym, &compose);
 295
 296     return (keysym == XK_F1);
 297 }
 298
 299 bool GrabOK(FILE* out, int err)
 300 {
 301     switch (err)
 302     {
 303         case GrabSuccess: return true;
 304         case GrabNotViewable: std::fprintf(out, "GrabNotViewable\n"); break;
 305         case AlreadyGrabbed: std::fprintf(out, "AlreadyGrabbed\n"); break;
 306         case GrabFrozen: std::fprintf(out, "GrabFrozen\n"); break;
 307         case GrabInvalidTime: std::fprintf(out, "GrabInvalidTime\n"); break;
 308         default: break;
 309     }
 310     return false;
 311 }